OF Bulb
Recommended for open bore options
The OF Bulb is a continuation of our classic OF 1 and 2, now with more sizes and more on the way. This features a rounded bulb-shaped body with a pronounced retention valley and a wide oval flange. The bulb provides the primary diameter, while the narrower section behind it creates a defined retention valley. The oval flange provides a broad base that fits between the glutes.
Available in six sizes, the OF Bulb offers a range of tip diameters and maximum bulb diameters. Each of the new sizes are just scaled up or down, the classic OF2 was the inspiration for the dimensions, so the OF1 is the most different is some ways, it has a shorter retention valley area, and its tip its a little less blunt, and it isn’t like the others which have a slight ball tip then shrinks down just a bit before tapering up to the central bulb. OF1 tapers from the tip to the bulb, it doesn’t get smaller after the tip.
Both of the classics will be replaced in the near future as the new options are added
Details
Available sizes: 1.5", Classic OF1, 1.7", Classic OF2, 2.2", and 2.5"
| Model | Tip Diameter | Bulb Max Diameter | Retention Valley Diameter and Length |
Flange Length X Width X Height |
Total and Insertable Length |
| 1.5” | 1.00” | 1.5” | 0.77” X 0.65” | 1.17” X 2.07” X 0.75” | 4.75” / 3.65” |
| Classic OF1 | 1.05” | 1.6” | 0.83” X 0.50” | 1.10” X 2.16” X 0.70” | 4.70” / 3.75” |
| 1.7” | 1.14” | 1.67 | 0.87” X 0.75” | 1.32” X 2.35” X 0.90” | 5.40” / 4.22” |
| Classic OF2 | 1.25” | 1.96” | 1.05” X 0.85” | 1.67” X 2.85” X 1.10” | 6.00” / 4.57” |
| 2.2” | 1.50” | 2.22” | 1.16” X 1.00” | 1.75” X 3.11” X 1.00” | 7.00” / 5.65” |
| 2.5” | 1.68” | 2.5” | 1.29” X 1.10” | 1.95” X 3.46” X 1.25” | 7.75” / 6.50” |
*Please note, on the Classic OF1 the tip is slightly less blunt, and the tip tapers to middle bulb, the Classic OF 2 and new ones have an area where the shaft shrinks a bit just after the tip, then gets larger to the bulb.
Choosing your silicone firmness
For the OF Bulb, Bob recommends #10 Medium for the smaller 1.5” and Classic 1
For the 1.7” and Classic 2, and 2.2” #0050 Soft
For the largest 2.5” #0020 Very Soft should be considered.
Color options
#18 and #30 are available in pure translucent silicone.
#00-50 and #10 use a translucent white base and can be mixed with our standard colors.
Please note
The OF Bulb has many sizes to choose from, most beginners will be able to use the smallest option, but the larger ones require more experience.
Anatomy varies, and no single size or shape will work for everyone. Use appropriate lubrication, never force insertion, and stop if you experience pain or significant discomfort. Inspect the nozzle before each use and do not use it if damaged.
